The flights are paid, the rooms are booked, but that doesn't help with the outflow of money once you've arrived. You still need to stay nourished for all that exploration you'll be doing! Unless you're at an all-inclusive resort, food can get pricey, especially if you're traveling to islands that depend on imports. Instead of eating out for all of your meals, opt to use a grocery store or local market (which may be a fresher alternative anyway!).
Pro tip: If you're looking for a meal to save some serious cash on, make your own breakfast! Seriously, how much can oats and sliced banana really cost you?
In the end, if you want something bad enough, you'll do what it takes to make it happen. Traveling has been an eye, heart, and mind opener for me, allowing me to experience different cultures and meet new people. Life is way too short to only dream of places you want to see. Create your reality, live and travel, freely.